JP2022516594A - Battery module and energy storage device - Google Patents

Abstract

[Abstract] The battery module according to the present invention includes N stacked battery units and fasteners, and each fastener connects and fixes two battery units provided at least at intervals. And fix multiple battery units. The present invention also discloses energy storage using the above battery module. The battery module is provided with fasteners provided on the outside of the plurality of battery units, and two battery units provided at intervals are connected and fixed by the fasteners, and the fasteners can be conveniently attached and detached. The number of battery units is increased in the stacking direction of the battery units, and the battery units are connected and fixed by fasteners to facilitate expansion of the power supply capacity.

Description

This application relates to the field of power supply, especially battery modules and energy storage devices.

A power supply system for power supply generally includes a plurality of battery units, and it is necessary to provide a cabinet with a cover to load the multiple battery units and to provide a fixed structure for mounting the battery units in the cabinet. By installing cables etc. in the cabinet, electrical connection between battery units is realized, and it is troublesome to install multiple battery units in the limited space of the cabinet, and the cable wiring is messy. Is. In addition, the space inside the cabinet cannot be adjusted, an extra battery unit cannot be installed, and it becomes difficult to expand the power supply capacity of the entire power supply system.

In view of this, it is necessary to provide a battery module and an energy storage device.

The battery module includes N stacked battery units and fasteners for connecting and fixing the battery units provided at least at two intervals.

According to some aspects of the invention, the fasteners are locked to each other with the battery units provided at least two spaced apart.

According to some aspects of the invention, the battery module comprises a plurality of the fasteners, each fastener connecting and fixing the battery unit connection provided at least two spaced apart. , The number of fasteners is greater than or equal to 2.

According to some aspects of the present invention, in the stacking direction of a plurality of the battery units, the battery units arranged in odd numbers of two adjacent batteries are connected by the fastener and arranged in an even number of two adjacent batteries. The battery unit is connected by the fastener.

According to some embodiments of the present invention, the fastener is provided with a plurality of spaced portions at intervals, and the two connecting portions located at both ends thereof are provided at both ends of the plurality of battery units. It is connected to each of the two located battery units, and in the remaining connection portions, the two adjacent connection portions are connected to the two battery units provided at intervals.

According to some aspects of the invention, the battery unit is connected to the four fasteners, two fasteners each located on one side of the battery unit, and the battery. It is divided into opposite ends of the unit.

According to some aspects of the invention, the fastener comprises a telescopic lever, the telescopic lever being adjustable in length in the stacking direction of the plurality of battery units and having the plurality of batteries. It is fixed along the stacking direction of the unit.

According to some aspects of the invention, the fastener has a first connecting member connected to one of the battery units, a second connecting member connected to the other battery unit, and both ends of the first connecting member. A connecting member and an adjusting member connected to the second connecting member, respectively, for adjusting the pitch between the first connecting member and the second connecting member are provided.

According to some aspects of the present invention, a first stud is provided at one end of the first connecting member, a second stud is provided at one end of the second connecting member, and the first stud and the first stud are provided. The direction of rotation of the screw thread is opposite to that of the second stud. The adjusting member is provided with screw holes for screwing the first stud and the second stud, respectively.

According to some aspects of the invention, the adjusting member is a spring and both ends are fixed to the first connecting member and the second connecting member, respectively.

According to some aspects of the present invention, the first connecting member is provided with a guide portion, the second connecting member is provided with a guide hole, and the guide portion is slid in the guide hole. It is provided so that it can be moved.

According to some aspects of the invention, the fastener is provided with a locking portion, the outer wall of the battery unit is provided with a hook, and the two battery units are respectively connected to the fastener. The directions of the hooks in the above are opposite, and the locking portion is engaged with and fixedly connected to the hook.

According to some aspects of the invention, the fastener is provided with a protruding buckle, the outer wall of the battery unit is provided with an engaging hole, and the buckle engages with the engaging hole. It is fixedly connected. According to some aspects of the invention, the outer wall of the battery unit is provided with an insertion hole, the fastener is provided with an insertion pin and a drive component, and the drive component is secured by the insertion pin. It is controlled so that it extends out of the tool and is inserted into the insertion hole, or the insertion pin is retracted from the insertion hole and detached from the battery unit.

According to some aspects of the invention, the battery unit is provided with two locking rings spaced apart from each other, with telescopic insertion pins on both opposite sides of the fastener. When the two insertion pins extend, they enter into the two locking rings of the battery unit, respectively, and when they retract, they disengage from the locking ring.

According to some aspects of the present invention, first holes and third holes are provided at both ends of the fastener, and second holes are provided on the outer wall of the battery unit, and one tightening component is provided. Penetrates and connects the first hole, the second hole, and the third hole.

According to some aspects of the present invention, the outer wall of the battery unit is provided with a receiving portion for mounting the fastener, and the fastener is provided at two intervals. Rotate around the receiver until it connects to the unit.

According to some aspects of the invention, the receiving portion comprises two struts provided on the outer wall of the battery unit, and the struts of two adjacent battery units are alternately arranged in the fastener. Is provided with two locking grooves for penetrating one of the fasteners and engaging with the strut.

According to some aspects of the invention, the receiving portion comprises a rotating shaft and a strut, respectively, provided on the outer wall of the battery unit, and one end of the fastener is rotatably provided on the rotating shaft. It is slidable along the axial direction of the rotating shaft, the other end of the fastener can be hooked on the outside of the column, and can be hooked on another column provided on the battery unit. be.

According to some aspects of the present invention, the receiving portion includes a slide hole and an engaging hole provided on the outer wall of the battery unit, respectively, and the slide hole has an introduction portion and a fixing portion that intersect with each other. Including, chucks are provided at both ends of the fastener, one chuck is accessible from the introduction portion and slides along the introduction portion to the fixing portion, and the other chuck is When the fastener is moved and rotated while being able to enter the engagement hole and being held by the outer wall of the battery unit, the two chucks of the fastener are inside the fixing portions of the two battery units. Enter and be held.

According to some aspects of the present invention, positioning portions and positioning grooves are provided on both sides of the battery units along the stacking direction, and the positioning portions of the battery units are such that two adjacent battery units are relative to each other. It is held in the positioning groove of another adjacent battery unit so as to be positioned in a positive manner.

According to some aspects of the invention, the battery unit is provided with an accommodating recess at the apex angle, and the fastener is filled in the accommodating recess and abuts on the groove wall of the accommodating recess.

According to some embodiments of the present application, at least one of the fasteners is connected to one side of the battery unit and at least one of the fasteners is connected to the other side of the other one of the battery units. , The fasteners provided on different sides of the different battery units are connected.

According to some aspects of the invention, two adjacent battery units are electrically connected in a direction in which the plurality of battery units are stacked.

According to some aspects of the invention, the two battery units are electrically connected by a heat insertion / removal component including a heat insertion / removal male terminal and a heat insertion / removal female terminal, and of the two adjacent battery units. One of the battery units is provided with the heat insertion / removal male terminal, and the other battery unit is provided with the heat insertion / removal female terminal.

According to some aspects of the invention, the stacked N battery units are mounted on one platform and the battery modules are provided on at least one battery unit and connected to one fixed structure. It is further provided with a hook for this purpose.

The present invention also proposes an energy storage device including any of the above battery modules and a battery management unit provided in the battery module for monitoring and managing the battery module.

In the above battery module, two battery units provided at intervals are fixedly connected to each other by fasteners provided on the outside of the plurality of battery units. It is convenient to put on and take off the fastener. By increasing the number of the battery units in the stacking direction of the battery units and connecting and fixing the battery units by using fasteners, it is possible to easily expand the power supply capacity.

It is a schematic block diagram of the battery module in 1st Embodiment of this invention. It is a schematic block diagram of the battery module in another embodiment. It is an exploded view which shows the structure of the battery unit in the battery module shown in FIG. It is a schematic block diagram of the base of the battery unit shown in FIG. It is an exploded view which shows the structure of the battery unit in another embodiment. It is a schematic block diagram in the embodiment in which the fastener in a battery module is different. It is a schematic block diagram in the embodiment in which the fastener in a battery module is different. It is a schematic block diagram in the embodiment in which the fastener in a battery module is different. It is a schematic block diagram of the battery module in 2nd Embodiment of this invention. It is a schematic block diagram of the battery module in another embodiment. It is a schematic block diagram of the battery module in 3rd Embodiment of this invention. It is an exploded view which shows the structure of the fastener in the battery module shown in FIG. It is a schematic block diagram which shows the hook in the battery unit of the battery module shown in FIG. It is a schematic block diagram of the battery module in 4th Embodiment of this invention. It is an exploded view which shows the structure of the fastener in the battery module shown in FIG. It is a schematic block diagram of the battery module in 5th Embodiment of this invention. It is a schematic block diagram before and after using the fastener of the battery module shown in FIG. It is a schematic block diagram before and after using the fastener of the battery module shown in FIG. It is a schematic block diagram of the battery module in the 6th Embodiment of this invention. It is a schematic block diagram before and after using the fastener of the battery module shown in FIG. It is a schematic block diagram before and after using the fastener of the battery module shown in FIG. It is a schematic block diagram of the battery module in 7th Embodiment of this invention. It is a schematic block diagram of the battery module in 8th Embodiment of this invention. It is a schematic block diagram of the battery module in 9th Embodiment of this invention. It is a schematic block diagram of the battery module in 10th Embodiment of this invention.

In the following specific embodiments, the present invention will be further described in connection with the above drawings.

Hereinafter, the technical proposal in the embodiment of the present application will be described clearly and entirely with reference to the drawings in the embodiment of the present application, but the examples described here are not all the examples but only a part of the embodiments of the present application. It is clear that there is no such thing. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor also fall within the scope of protection of the present application.

Unless otherwise defined, all technical and scientific terms used in this text have the same meanings generally understood by engineers in the art of the present application. The terms used herein are for purposes of explaining specific embodiments only and are not intended to limit the present application.

Hereinafter, some embodiments of the present application will be described in detail in connection with the drawings. If they do not collide, the following embodiments and features in the embodiments may be combined with each other.

[First Embodiment]
As shown in FIG. 1, the battery module 100 comprises N sequentially stacked battery units 10 and fasteners 20, where N is greater than or equal to 3. The battery unit 10 is for supplying electric energy. The fastener 20 connects and fixes the battery unit 10 connection provided at least at two intervals, and fixes the two battery units 10 and the battery unit 10 located between them.

In the battery module 100, two battery units 10 provided at intervals are fixedly connected by fasteners 20 provided on the outside of the plurality of battery units 10. It is convenient to put on and take off the fastener 20. Further, the fastener 20 fixes two battery units 10 provided at intervals by a locking method. When it is necessary to improve the supplied electric energy, the number of the battery units 10 may be increased in the stacking direction of the battery units 10, and the fastener 20 may be attached to the outside of the battery unit 10.

A first hole 201 and a third hole 201c are provided at both ends of the fastener 20. A second hole (not shown) is provided on the outer wall of the battery unit 10. Using one tightening component (not shown), the first hole 201, the second hole, and the third hole 201c are connected through the first hole 201, the first hole 201, the third hole 201c, and the above. By connecting to the second hole, the fastener 20 is connected and fixed to the battery unit 10. The tightening component is, but is not limited to, a screw.

In the illustrated embodiment, the two spaced battery units 10 were connected and fixed by one fastener 20, but in other embodiments, they are spaced apart to improve the stability of the connection. The two battery units 10 may be connected and fixed by another number of fasteners 20 such as two or three.

The number of the fasteners 20 is plural, and the plurality means two or two or more, and the two adjacent battery units 10 are arranged in an odd number along the stacking direction of the plurality of battery units 10. Is connected by the fastener 20. The battery units 10 arranged in an even number of two adjacent to each other are connected by the fastener 20.

The number of battery units 10 between the two battery units 10 connected to each fastener 20 may be one or more, thereby connecting to each fastener 20 2 The two battery units 10 are arranged at intervals. For example, as shown in FIG. 1, the battery module 100 includes nine battery units 10, and the arrangement order of the battery units 10 is 1 to 9 from bottom to top, of which the arrangement order is 1, 3, and 2. The two battery units 10, which are 4, 3 and 5, 4 and 6, 5 and 7, 7 and 9, are connected by the fastener 20. In another embodiment, the number of the battery units 10 in the battery module 100 may be four. Among them, the two battery units 10 having the arrangement order of 1, 3, 2 and 4 are connected by the fastener 20. In another embodiment, as shown in FIG. 2, the battery module 100a comprises nine battery units 10 and has two said sequences in which the arrangement order is 1 and 4, 2, 5, 5, 8, 6 and 9. The battery unit 10 is connected by a fastener 20a.

A plurality of stacked battery units 10 of the battery module 100 are alternately connected, and an interlocking structure is formed between the plurality of battery units 10. The two adjacent battery units 10 enhance the stability of the connection of the plurality of battery units 10 without disconnecting the connection.

As shown in FIGS. 3 and 4, the battery unit 10 includes a base 11, a cover 13, a gasket 15, and a battery pack (not shown). The battery pack is for supplying electric energy. The battery pack is provided in the base 11. The gasket 15 is provided between the base 11 and the cover 13. The cover 13 is connected to the base 11 and closes the base 11. A positioning groove 111 is provided on the side of the base 11 away from the cover 13, and a positioning portion 113 is provided at one end toward the cover 13. When the positioning portion 113 of the battery unit 10 is locked in the positioning groove 111 of another adjacent battery unit 10, the two adjacent battery units 10 become immovable or immovable in a plane. , Relatively positioned. In another embodiment, the positioning groove 111 and the positioning portion 113 may be omitted.

The two adjacent battery units 10 are electrically connected. Specifically, the two adjacent battery units 10 are electrically connected by a heat insertion / removal component 17. The heat insertion / removal component 17 includes a heat insertion / removal male terminal 171 and a heat insertion / removal female terminal 173. The battery pack is electrically connected to the heat insertion / removal male terminal 171 and the heat insertion / removal female terminal 173, respectively, via a conducting wire (not shown). The heat insertion / removal male terminal 171 is provided in the positioning groove 111 of the base 11. The heat insertion / removal female terminal 173 is provided on the cover 13. Of the two adjacent battery units 10, the heat insertion / removal male terminal 171 of one of the battery units 10 and the heat insertion / removal female terminal 173 of the other battery unit 10 move along the stacking direction. Realizes the connection, but is not limited to this.

As shown in FIG. 5, in another embodiment, the battery module 100a1 includes a plurality of sequentially stacked battery units 10a. Of the two adjacent battery units 10a, one of the battery units 10a is provided with a heat insertion / extraction male terminal 171a on one side orthogonal to the stacking direction, and the other battery unit 10a is orthogonal to the stacking direction. A male terminal 173a for heat insertion and removal is provided on one side. The heat insertion / removal male terminal 171a and the heat insertion / removal male terminal 173a are arranged so as to face each other, and both are moved along a direction orthogonal to the stacking direction to realize a connection. In another embodiment, the angle between the insertion / removal direction of the heat insertion / extraction component 17a and the stacking direction is an acute angle or an obtuse angle.

As shown in FIG. 6, in another embodiment, the fastener 20 is provided with a protruding buckle 201a. A locking hole 101 is provided on the outer wall of the battery unit 10. The buckle 201a is engaged with and fixedly connected to the locking hole 101.

As shown in FIG. 7, in another embodiment, the outer wall of the battery unit 10 is provided with an insertion hole 102. The fastener 20 is provided with an insertion pin 201b and a drive component 203. The drive component 203 controls the insertion pin 201b to extend from the fastener 20 and to be inserted into the insertion hole 102. By inserting the two insertion pins 201b into the insertion holes 102 of the two battery units 10, the fastener 20 connects and fixes the two battery units 10 provided at intervals. Become. When the drive component 203 is pressed and lowered, the drive component 203 controls the insertion pin 201b to retract into the fastener 20 and detaches the insertion pin 201b from the battery unit 10. The fastener 20 releases the connection and fixing of the two battery units 10.

As shown in FIG. 8, in still another embodiment, the battery unit 10 is provided with two locking rings 106 spaced apart from each other. Stretchable insertion pins 201b are provided on both opposite sides of the fastener 20. For example, the insertion pin 201b is provided on the fastener 20 so as to be slidable along the radial direction, and one elasticity is provided between the two insertion pins 201b located on both opposite sides of the fastener 20. A member (not shown) is held. The elastic member naturally drives the two insertion pins 201b to extend out of the fastener 20. By pressing the two insertion pins 201b, the insertion pin 201b can be retracted into the fastener 20. The insertion pin 201b is provided on the fastener 20 so as to be expandable and contractible. When the two insertion pins 201b arranged to face each other extend, they are inserted into the two locking rings 106 of the battery unit 10, respectively, and the fastener 20 is fixedly connected to the battery unit 10. When the insertion pin 201b arranged to face each other retracts, the insertion pin 201b is disengaged from the locking ring 106 to cause the fastener 20 to disconnect the battery unit 10.

Two locking rings 106 are provided in the two battery units 10 provided at intervals. The fastener 20 is provided with the four insertion pins 201b. The two insertion pins 201b cooperate with the two locking rings 106 in one battery unit 10 to connect and fix the two battery units 10 to the fastener 20.

Further, the fastener 20 is provided with another drive component 203a. The expansion and contraction of the insertion pin 201b is controlled by another drive component 203a. When the drive component 203a is pressed and lowered, the drive component 203a controls the insertion pin 201b to retract into the fastener 20 and detaches the insertion pin 201b from the battery unit 10. The pressing on the drive component 203a is released, and the insertion pin 201b is extended. In another embodiment, the drive component 203a may be omitted.

[Second Embodiment]
As shown in FIG. 9, the battery module 100b includes a fastener 20b and a plurality of battery units 10. The fastener 20b is provided with a plurality of connecting portions 202 at intervals. The two connecting portions 202 located at both ends of the fastener 20b are connected to the two battery units 10 located at both ends of the plurality of battery units 10, respectively. In the remaining connection portion 202, the two adjacent connection portions 202 are connected to the two battery units 10 provided at intervals.

Further, as shown in FIG. 10, the number of the connection portions 202 may be two, and the two connection portions 202 are two battery units 10 located at both ends of the plurality of battery units 10, respectively. Connected to.

The number of the fasteners 20b is four. The two fasteners 20b are located on one side of the plurality of battery units 10, and are separately arranged at both ends of the battery unit 10 facing each other. Further, in another embodiment, the number of the fasteners 20b may be one or another.

The connection portion 202 has a round hole structure. The fastener 20b is connected and fixed to the battery unit 10 by penetrating the connection portion 202 with a screw (not shown) and connecting to the hole provided in the battery unit 10.

In another embodiment, the connection portion 202 may have an elongated hole structure (not shown). The screw can penetrate the connection portion 202 and move within the connection portion 202 to adjust its position so as to align with the hole of the battery unit 10.

[Third Embodiment]
As shown in FIGS. 11 to 13, the battery module 100c includes a plurality of stacked battery units 10 and fasteners 20c. Locking portions 204 are provided at both ends of the fastener 20c. A hook 103 is provided on the outer wall of the battery unit. The locking portion 204 is engaged in the hook 103 to fix and connect the fastener 20c and the battery unit 10. The hook 103 has a substantially plate-like structure, and one end thereof is bent to form a concave groove 1031. The locking portion 204 is engaged in the concave groove 1031. The directions of the hooks 103 in the two battery units 10 connected to the fasteners 20c are opposite to each other. Specifically, the battery unit 10 is provided with the two hooks 103 along the stacking direction. ing. The openings of the concave grooves 1031 of the two hooks 103 are provided so as to be separated from each other. The fastener 20c applies a pulling force to the two battery units 10 to relatively fix the two battery units 10 and the battery unit 10 located between them.

The fastener 20c has a substantially annular structure, and both ends thereof are hooked on the corresponding hook 103 in the battery unit 10 and fitted into the concave groove 1031, but the fastener 20c is not limited to this. For example, in another embodiment, the fastener 20c has a rod-like structure, and protrusions extending to one side are provided at both ends of the fastener, and the fasteners 20c are fitted into the concave groove 1031 of the hook 103 by the protrusions. , The fastener 20c and the battery unit 10 may be connected and fixed.

The lengths of the plurality of battery units 10 of the fasteners 20c in the stacking direction are adjustable in expansion and contraction and are fixed. Specifically, the fastener 20c includes a first connecting member 21c, a second connecting member 22c, and an adjusting member 23c. The first connecting member 21 is connected to one battery unit 10. The second connecting member 22c is connected to the other battery unit 10. Both ends of the adjusting member 23c are connected to the first connecting member 21c and the second connecting member 22c, respectively, and a tensile force is applied to the first connecting member 21c and the second connecting member 22c, respectively, to apply a tensile force to the two batteries. The distance between the first connecting member 21c and the second connecting member 22c is adjusted so that the units 10 move and are fixed so as to approach each other.

The first connecting member 21c and the second connecting member 22c each have a U-shaped structure, but the structure is not limited thereto. The adjusting member 23c is connected to the first connecting member 21c and the second connecting member 22c, respectively, to form a fastener 20c having an annular structure. The first connecting member 21c and the second connecting member 22c are provided with the locking portion 204 at one end away from the adjusting member 23c, respectively, and the two fasteners 20c are provided at intervals. The battery unit 10 is fixedly connected.

A first stud 211 is provided at one end of the first connecting member 21c away from the locking portion 204. A second stud 221 is provided at one end of the second connecting member 22c away from the locking portion 204. The adjusting member 23c is provided with a screw hole (not shown). The screw holes are screwed into the first stud 211 and the second stud 221, respectively. The rotation directions of the threads of the first stud 211 and the second stud 221 are opposite to each other.

By rotating the adjusting member 23c, the first connecting member 21c and the second connecting member 22c are moved so as to be separated at the same time, the distance between the two is increased, and the two locking portions 204 It can be fitted into the corresponding hook 103. By rotating the adjusting member 23c, the first connecting member 21c and the second connecting member 22c are moved so as to approach each other at the same time, the distance between the two is reduced, and the two locking portions 204 The hook 103 is pulled and held, and the two battery units 10 are pulled and fixed by the fastener 20c.

Each battery unit 10 is provided with eight hooks 103. In order to improve the stability of the connection, one hook 103 is provided at each of the four corners of the battery unit 10. Each hook 103 forms two spaced groove 1031s for engaging and fixing the two fasteners 20c.

[Fourth Embodiment]
As shown in FIGS. 14 and 15, the battery module 100d has substantially the same structure as the battery module 100c in the third embodiment, except that the fastener 20d and the fastener 20c have different structures. There is.

The fastener 20d includes a first connecting member 21d, a second connecting member 22d, and an adjusting member 23d. The adjusting member 23d is a spring. Both ends of the adjusting member 23d are fixed to the first connecting member 21d and the second connecting member 22d, respectively. The first connecting member 21d is provided with a guide portion 213. The second connecting member 22d is provided with a guide hole (not shown). The guide portion 213 is slidably provided in the guide hole. In other embodiments, the guide hole and the guide portion 213 may be omitted.

The adjusting member 23d applies a pulling force to the first connecting member 21d and the second connecting member 22d to pull the hook 103 to the two locking portions 204, and further, two with the fastener 20c. The battery unit 10 is pulled and fixed.

[Fifth Embodiment]
As shown in FIG. 16, when the fastener 20e in the battery module 100e is not in use, it is movably attached to one battery unit 10. When the fastener 20e is used, it is rotatable along two directions, and both ends thereof are connected to two spaced battery units 10.

As shown in FIG. 17, the battery module 100e includes four stacked battery units 10. The two battery units 10 having an arrangement order of 1, 3, 2, and 4 are connected and fixed by the fastener 20e. One fastener 20e is placed on one side of each of the two battery units 10 having an arrangement order of 1 and 2. A receiving portion 104e is provided on the outer wall of the battery unit 10. One end of the fastener 20e is in contact with the receiving portion 104e and is rotatable around the receiving portion 104e, and the other end of the fastener 20e is connected to and fixed to the other battery unit 10. Rotate to.

The receiving portion 104e includes two columns 1041 provided on the outer wall of the battery unit 10. The fastener 20e is provided with two locking grooves 205. The locking groove 205 penetrates one side of the fastener 20e. The locking groove 205 is locked to the support column 1041. The columns 1041 in the two adjacent battery units 10 are alternately provided, and the positions of the columns 1041 in the two battery units 10 connected to the fastener 20e correspond to each other. When not in use, as shown in FIG. 17, the strut 1041 is accessible from one side of the locking groove 205, and the fastener 20e is placed on the receiving portion 104e. When in use, as shown in FIG. 18, the fastener 20e is rotatable around the strut 1041 of any of the receiving portions 104e, in the battery unit 10 provided at two intervals. The locking groove 205 of the fastener 20e is locked to the support column 1041.

Further, in another embodiment, when the fastener 20e is used, the fastener 20e is removed from the receiving portion 104e, and then, on the support column 1041 in the two battery units 10 provided at intervals. The locking grooves 205 of the fastener 20e may be locked and attached.

[Sixth Embodiment]
As shown in FIG. 19, one end of the fastener 20f in the battery module 100f is rotatably provided on the outer wall of the battery unit 10. When the other end of the fastener 20f is not used, it can be mounted on the battery unit 10, and when it is used, it rotates until it is connected to and fixed to the other battery unit 10. Can be done.

As shown in FIG. 20, in the battery module 100f, a receiving portion 104f for mounting the fastener 20f is provided on the outer wall of the battery unit 10. The receiving portion 104f includes a rotating shaft 1043 and a support column 1041 provided on the outer wall of the battery unit 10, respectively. One end of the fastener 20f is rotatably provided on the rotating shaft 1043 and is slidable along the axial direction of the rotating shaft 1043. When the other end of the fastener 20f is not used, it can be locked to the support column 1041, and when it is used, it is locked to another support column 1041 provided in the battery unit 10.

As shown in FIGS. 20 and 21, the battery module 100f includes four stacked battery units 10. The two battery units 10 having the arrangement order of 1, 3, 2 and 4 are connected and fixed by the fastener 20f. One fastener 20f is placed on one side of each of the two battery units 10 having an arrangement order of 1 and 2. The battery unit 10 having an arrangement order of 3 is provided with another support column 1041 corresponding to the rotation axis 1043 in the battery unit 10 having an arrangement order of 1. When not in use, the fastener 20f is locked to a receiving portion 104f in the battery unit 10 having a sequence of 1. When used, the fastener 20f slides along the axis of the rotating shaft 1043 to disengage the fastener 20f from the strut 1041 of the receiving portion 104. The fastener 20f rotates around the rotation shaft 1043 to align the fastener 20f with the other support column 1041 in the battery unit 10 having an arrangement order of 3. The fastener 20f slides along the axis of the rotating shaft 1043 to lock the fastener 20f to the column 1041 in the battery unit 10 having an arrangement order of 3, and the fastener 20f is attached to the two columns. A tensile force is applied to 1041 to connect and fix the two battery units 10 having an arrangement order of 1 and 3.

Further, in another embodiment, the fastener 20f may have a structure that can be expanded and contracted in order to increase the pulling force on the two columns 1041.

[7th Embodiment]
As shown in FIG. 22, the battery module 100g includes three stacked battery units 10. In the battery module 100 g, a receiving portion 104 g for mounting the fastener 20 g is provided on the outer wall of the battery unit 10. The receiving portion 104g includes a slide hole 1044 and an engagement hole 1047 provided on the outer wall of the battery unit 10, respectively. The slide hole 1044 includes an introduction portion 1045 and a fixing portion 1046 that intersect with each other. Chuck 206s are provided at both ends of the fastener 20g toward one side of the battery unit 10. Here, one of the chucks 206 is accessible from the introduction portion 1045 and slides along the introduction portion 1045 to the fixing portion 1046. The other chuck 206 can enter the engagement hole 1047 and be locked to the outer wall of the battery unit 10. The two chucks 206 of the fastener 20 g are locked in the fixing portions 1046 of the two battery units 10.

The battery unit 10 having an arrangement order of 1 is provided with the receiving portion 104 g. The receiving portion 104g includes the slide hole 1044 and the engaging hole 1047. The hole diameter of the introduction portion 1045 and the engagement hole 1047 is larger than the outer diameter of the chuck 206. The battery unit 10 having an arrangement order of 3 is provided with another slide hole 1044. When the fastener 20g is not used, one of the chucks 206 enters through the introduction portion 1045 to lock the chuck 206 to the fixing portion 1046, and the other chuck 206 has the engagement hole 1047. And is locked to the outer wall of the battery unit 10. When used, the fastener 20g is rotated to remove the chuck 206 from the engagement hole 1047, and the other chuck 206 is slid along the fixing portion 1046 while the fastener 20g is removed. The chuck 206 is continuously rotated to align the chuck 206 with the introduction portion 1045 in the other battery unit 10. The fastener 20g is moved and rotated so that the two chucks 206 enter the fixing portion 1046 of the two battery units 10, respectively, and the fasteners 20g are arranged in the order of 1 and 3. The two battery units 10 are connected and fixed.

[Eighth Embodiment]
As shown in FIG. 23, in the battery module 100h, the battery unit 10h is provided with accommodation recesses 105 at four apex angles. The battery units 10h provided at intervals are connected and fixed by fasteners 20h. The fastener 20h is filled in the accommodation recess 105 and is fixed to the battery unit 10h with a buckle, a screw or the like. The groove wall of the accommodating recess 105 is in contact with the fastener 20h, and is stopped by the fastener 20h when the battery unit 10h rotates in a plane. Since the fastener 20h provides not only a force in the stacking direction but also a force for blocking the rotation of the battery unit 10h along the circumferential direction, the stability of the connection is further improved.

[9th Embodiment]
As shown in FIG. 24, in the battery module 100i, the fastener 20i has a substantially L-shaped plate structure. Specifically, the fastener 20i includes a first connecting portion 207 and a second connecting portion 208 that are in contact with each other. The first connection portion 207 and the second connection portion 208 are located on both sides of the battery unit 10. The first connection unit 207 is connected to one battery unit 10, and the second connection unit 208 is connected to the other battery unit 10. As a result, the fastener 20i connects and fixes the two battery units 10 provided at intervals.

[10th Embodiment]
As shown in FIG. 25, the battery module 100j includes at least one hooking portion 30 and N sequentially stacked battery units 10. The plurality of battery units 10 are mounted on one platform 301. The number of the hooking portions 30 is one, but the number is not limited to this. The hooking portion 30 is provided on one of the battery units 10 and is used for connecting to the one fixed structure 302. Specifically, the fixed structure 302 is provided with a hook 3021 suitable for the hooking portion 30. The hook portion 30 is engaged and fixed to the hook 3021. The hooking portion 30 may have an annular structure, and the annular structure is connected and fixed so as to be hooked on the hook 3021. Further, in another embodiment, the hooking portion 30 has an annular structure and is connected to a screw hole provided in the fixing structure 302 with a screw or the like to fix the hooking portion 30 to the fixed structure 302. do.

The platform 301 is a floor, and the fixed structure 302 is a wall that intersects the floor, but is not limited thereto. In another embodiment, the platform 301 and the fixed structure 302 may be two side walls that intersect in a device.

In another embodiment, the number of the hooking portions 30 may be two or another. By providing at least one hooking portion 30 in each battery unit 10, each battery unit 10 can be fixed to the fixed structure 302. Further, in another embodiment, the hooking portion 30 is provided in each of the two battery units 10 provided at intervals.

The two adjacent battery units 10 are provided with a positioning structure such as the positioning portion 113 and the positioning groove 111 provided in the first embodiment, so that the two adjacent battery units 10 are placed in a plane in the circumferential direction. To one or more of the battery units 10, the fixing structure 302 is connected and fixed, and a hooking portion 30 for fixing the remaining battery unit 10 is provided.

In another embodiment, the two adjacent battery units 10 may realize relative positioning by gravity and frictional force, and the positioning portion 113, the positioning groove 111, and the like provided in the first embodiment may be realized. The positioning structure may be omitted.

[11th Embodiment]
The present application further provides an energy storage device (not shown), wherein the energy storage device is a battery module 100 (100a, 100a1, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i) in the above embodiment. , 100j), and thus has all the beneficial effects of the above battery modules, the description of which is omitted here. The energy storage device is further provided in a battery module 100 (100a, 100a1, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i, 100j) and is a battery management unit for monitoring and managing the battery module 100 (100a, 100a1, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i, 100j). (Battering Management System) (not shown) is further provided. For example, the battery management unit monitors the electric circuit, voltage, battery capacity, etc. of the battery module 100 (100a, 100a1, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i, 100j) for safety. Ensuring sex.

The energy storage device may be, but is not limited to, a cleaning facility, an electric vehicle, a drone, a power tool, or the like.

As can be seen from the above embodiment, the battery module includes fasteners provided on the outside of the plurality of battery units, and two battery units provided at intervals by the fasteners are connected and fixed. The attachment and detachment of the fastener is convenient. By increasing the number of the battery units 10 in the stacking direction of the battery units and connecting and fixing the battery units with fasteners, the power supply capacity is expanded.

The above embodiments are used only for explaining the technical proposals of the present application and do not limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art will also deviate from the spirit and scope of the technical proposal of the present application by modifying or evenly substituting the technical proposal of the present application. It should be understood that nothing happens.

100,100a, 100a1,100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i, 100j Battery module 10,10a, 10h Battery unit 11 Base 111 Positioning groove 113 Positioning part 13 Cover 15 Gasket 17, 17a Components 171,171a Thermal insertion / extraction male terminal 173,173a Thermal insertion / extraction female terminal 101 Locking hole 102 Insertion hole 103 Hook 1031 Concave groove 1033 Opening 104e, 104f, 104g Receiving part 1041 Strut 1043 Rotating shaft 1044 Slide hole 1045 Introducing part 1046 Fixing part 1047 Engagement hole 105 Containment recess 106 Locking ring 20, 20a, 20b, 20c, 20d, 20f, 20g, 20h, 20i Fastener 201 1st hole 201a Buckle 201b Insertion pin 201c 3rd hole 202 Connection part 203, 203a Drive parts 204 Locking part 21c, 21d 1st connecting member 211 1st stud 213 Guide part 22c, 22d 2nd connecting member 221 2nd stud 23c, 23d Adjusting member 205 Locking groove 206 Chuck 207 1st connection part 208 2nd Connection part 30 Hook part 301 Platform 302 Fixed structure

According to some aspects of the invention, the battery module comprises a plurality of the fasteners, each fastener connecting and fixing the battery units provided at least two spaced apart. The number of fasteners is greater than or equal to 2.

According to some aspects of the invention, the receiving portion comprises a rotating shaft and a strut, respectively, provided on the outer wall of the battery unit, and one end of the fastener is rotatably provided on the rotating shaft. It is slidable along the axial direction of the rotating shaft, and the other end of the fastener can be hooked on the support column and can be hooked on another support column provided on the battery unit.

[First Embodiment]
As shown in FIG. 1, the battery module 100 comprises N sequentially stacked battery units 10 and fasteners 20, where N is greater than or equal to 3. The battery unit 10 is for supplying electric energy. The fastener 20 connects and fixes the battery units 10 provided at least at two intervals, and fixes the two battery units 10 and the battery unit 10 located between them.

The lengths of the plurality of battery units 10 of the fasteners 20c in the stacking direction are adjustable in expansion and contraction and are fixed. Specifically, the fastener 20c includes a first connecting member 21c, a second connecting member 22c, and an adjusting member 23c. The first connecting member 21c is connected to one battery unit 10. The second connecting member 22c is connected to the other battery unit 10. Both ends of the adjusting member 23c are connected to the first connecting member 21c and the second connecting member 22c, respectively, and a tensile force is applied to the first connecting member 21c and the second connecting member 22c, respectively, to apply a tensile force to the two batteries. The distance between the first connecting member 21c and the second connecting member 22c is adjusted so that the units 10 move and are fixed so as to approach each other.

Claims (27)

It ’s a battery module.
It is provided with N stacked battery units and fasteners for connecting and fixing the battery units provided at least at two intervals.
The battery module, wherein N is greater than or equal to 3. The battery module according to claim 1, wherein the fastener is locked to each other with the battery unit provided at least two intervals. The battery module includes a plurality of the fasteners, and each fastener connects and fixes the battery unit connection provided at least two intervals, and the plurality means fixing two fixing parts. The battery module according to claim 1 or 2, wherein the battery module is larger or equal to the component. In the stacking direction of the plurality of battery units, two adjacent battery units arranged in an odd number are connected by the fastener, or two adjacent battery units arranged in an even number are connected by the fastener. The battery module according to claim 3, wherein the battery module is made. A plurality of connecting portions are provided at intervals in the fastener, and the two connecting portions located at both ends are connected to the two battery units located at both ends of the plurality of battery units, respectively. The battery module according to claim 3, wherein in the remaining connection portions, two adjacent connection portions are connected to two battery units provided at intervals. Four of the fasteners are connected to the battery unit, and the two fasteners are located on one side of the battery unit and are separately arranged at both opposite ends of the battery unit. The battery module according to claim 3, wherein the battery module is provided. The battery according to claim 3, wherein the fastener includes a telescopic lever, and the telescopic lever is adjustable in length in a stacking direction of a plurality of the battery units and is fixed. module. The fastener has a first connecting member connected to one of the battery cells, a second connecting member connected to the other battery cell, and both ends of the first connecting member and the second connecting member, respectively. The battery module according to claim 7, wherein the battery module is connected and includes an adjusting member for adjusting the pitch between the first connecting member and the second connecting member. A first stud is provided at one end of the first connecting member, a second stud is provided at one end of the second connecting member, and the rotation direction of the screw thread between the first stud and the second stud. Is the opposite. The battery module according to claim 8, wherein the adjusting member is provided with screw holes for screwing the first stud and the second stud, respectively. The battery module according to claim 8, wherein the adjusting member is a spring, and both ends thereof are fixed to the first connecting member and the second connecting member, respectively. The first connecting member is provided with a guide portion, the second connecting member is provided with a guide hole, and the guide portion is slidably provided in the guide hole. The battery module according to claim 10. The fastener is provided with a locking portion, the outer wall of the battery cell is provided with a hook, and the hooks in each of the two battery units connected to the fastener are in opposite directions. The battery module according to claim 3, wherein the locking portion is engaged with and fixedly connected to the hook. The fastener is provided with a protruding buckle, an engaging hole is provided on the outer wall of the battery unit, and the buckle is engaged with and fixedly connected to the engaging hole. The battery module according to claim 3. An insertion hole is provided in the outer wall of the battery unit, an insertion pin and a drive component are provided in the fastener, and the drive component has the insertion pin extending out of the fastener and inside the insertion hole. The battery module according to claim 3, wherein the battery module is controlled so as to be inserted into the battery unit, or the insertion pin is controlled to retract from the insertion hole and detach from the battery unit. The battery unit is provided with two locking rings spaced apart from each other and telescopic insertion pins on opposite sides of the fastener, respectively, when the two insertion pins extend. The battery module according to claim 3, wherein the battery module enters the two locking rings of the battery unit and then disengages from the locking ring when retracting. A first hole and a third hole are provided at both ends of the fastener, a second hole is provided on the outer wall of the battery unit, and one tightening component is the first hole and the second hole. The battery module according to claim 3, wherein the battery module is connected to the third hole through the third hole. The outer wall of the battery unit is provided with a receiving portion for mounting the fastener, and the fastener is placed around the receiving portion until it is connected to the battery unit provided at two intervals. The battery module according to claim 3, wherein the battery module rotates. The receiving portion includes two columns provided on the outer wall of the battery unit, two adjacent battery unit columns are arranged alternately, and the fastener penetrates one of the fasteners. The battery module according to claim 17, wherein two locking grooves for engaging with the support column are provided. The receiving portion includes a rotation shaft and a support column respectively provided on the outer wall of the battery unit, and one end of the fastener is rotatably provided on the rotation shaft and slides along the axial direction of the rotation shaft. 17. The battery module according to claim 17, wherein the other end of the fastener can be hooked on the support column and can be hooked on another support column provided on the battery cell. .. The receiving portion includes a slide hole and an engagement hole provided on the outer wall of the battery unit, respectively, and the slide hole includes an introduction portion and a fixing portion which intersect with each other, and chucks are provided at both ends of the fastener. One of the chucks can enter from the introduction portion and slides along the introduction portion to the fixing portion, and the other chuck can enter into the engagement hole. Further, when the fastener is held on the outer wall of the battery unit and the fastener is moved and rotated, the two chucks of the fastener are held in the fixing portions of the two battery units. The battery module according to claim 17. Positioning portions and positioning grooves are provided on both sides of the battery units along the stacking direction, and the positioning portions of the battery units are adjacent to each other so that two adjacent battery units are relatively positioned. The battery module according to claim 3, wherein the battery module is held in a positioning groove of the battery unit. The battery module according to claim 3, wherein the battery unit is provided with an accommodating groove at an apex angle, and the fastener is filled in the accommodating groove and abuts on the groove wall of the accommodating groove. The at least one fastener is connected to one side of the battery unit and the at least one fastener is connected to the other side of the other one battery unit and is provided on different sides of the different battery units. The battery module according to claim 3, wherein the fastener is connected. The battery module according to claim 3, wherein two adjacent battery units are electrically connected in a direction in which the plurality of battery units are stacked. The two battery units are electrically connected by a heat insertion / removal component including a heat insertion / removal male terminal and a heat insertion / removal female terminal, and the heat insertion / removal is performed in one of the two adjacent battery units. The battery module according to claim 24, wherein a male terminal is provided, and the other battery unit is provided with the heat insertion / removal female terminal. The stacked N battery units are mounted on one platform, and the battery module is further provided on at least one battery unit and further provided with a hook for connecting to one fixed structure. 3. The battery module according to claim 3. An energy storage device including the battery module according to any one of claims 1 to 26, and a battery management unit provided in the battery module for monitoring and managing the battery module.

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